Dual PSU Synchronous Startup Adapter Board with LED Indicator, ATX 24Pin SATA Sync Extension Cable ADD2PSU for Extra GPU Power Supply

This ADD2PSU dual power supply synchronous trigger board allows you to connect a secondary independent PSU to your gaming PC, perfectly resolving insufficient wattage problems when running high-power flagship graphics cards or multiple GPUs. It synchronizes the startup/shutdown logic of the main PSU and auxiliary PSU, so the secondary power supply automatically turns on/off along with the main unit without manual operation. Equipped with a visible LED working indicator light, users can instantly check whether the secondary PSU is powered on normally to quickly troubleshoot connection faults. The board retains both ATX 24Pin and SATA trigger ports, supporting flexible wiring matching different power supply internal cable layouts.

Made with reinforced circuit board and stable control chips, it ensures reliable synchronous signal transmission without startup delay or power supply failure risks under long-term full-load gaming operation. The small lightweight PCB takes up minimal chassis space and will not block cooling fans or other hardware wiring. Plug-and-play setup without complicated driver or BIOS modification, compatible with all standard ATX desktop power supplies and mainstream NVIDIA/AMD high-power gaming graphics cards. It is an essential upgrade accessory for 4K gaming rigs, multi-GPU workstations and custom water-cooled PCs that demand massive power output beyond single PSU capacity.